Mechanical pipe joint and method of forming the same
CA 1182146 A · Owner: Butler Taper Joint, Inc. · Inventors: Butler, Major G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A mechanical pipe joint is disclosed in which a pin formed on the end of one pipe section is inserted in a socket formed in the end of another pipe section. The tapered section on the pin has a taper angle less than the taper angle of the tapered section on the socket. When the pin is inserted to the desired depth an annular, cavity will be formed between the tapered section in which sealant is trapped to form an annular seal for the joint.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted February 5, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 5, 2002.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.